baber/WOPTO huggingface dataset:
Patent GB-1470039-A (GB)
Title: 1-phenoxy-3-isopropylamino-2=propanol and process for the production thereof
IPC: C07H15/04
Filed: 1975-02-06
Abstract: 1470039 Alkanolamines CIBA-GEIGY AG 6 Feb 1975 [8 Feb 1974] 5080/75 Heading C2C (L) - 1 - (4 - Hydroayphenoxy) - 2 - hydroxy- 3-isopropylaminopropane and its salts are prepared by standard methods, e.g. resolution or removal of O and/or N protecting group(s), optionally followed by salt formation. The preparation of 4-(2,3-epoxypropoxy)- phenyl - # - D - glucopyranoside, 1 - [p - (#- D - glucopyranosidyloxy)phenoxy] - 3 - isopropylamino - 2 - propanol, 1,2 - O - isopropylidene- 6 - O - (4 - benzyloxyphenyl) - α - D - glucofuranose, 6 - O - (4 - benzyloxyphenyl) - D - glucose, 1 - (4 - benzyloxyphenoxy) - 2S,3 - dihydroxypropane, 1 - (4 - benzyloxyphenoxy) - 2R - hydroxy - 3 - p - tosyloxypropane and 1 - isopropylamino - 2S - hydroxy - 3 - (4 - benzyloxyphenoxy)- propane and its hydrochloride is described. The above compounds may be used for the treatment of myocardial insufficiency, in the form of pharmaceutical preparations containing them in association with a carrier.
Patent GB-1460681-A (GB)
Title: Treatment of ammonia synthesis purge gas
IPC: F25J3/06
Filed: 1975-02-06
Abstract: 1460681 Ammonia synthesis PETROCARBON DEVELOPMENTS Ltd 26 Jan 1976 [6 Feb 1975] 5111/75 Heading C1A Ammonia is synthesized by reacting N 2  and H 2  at superatmospheric pressure in a reaction zone with recycle of unreacted gas wherein the H 2  is derived from He-containing natural gas comprising (a) withdrawing a purge gas stream 2 at superatmospheric pressure from the gas being recycled, (b) cooling the purge gas stream to subambient temperature to partially condense it and form a condensate phase containing CH 4  and A and a H 2 -enriched gaseous phase containing He, (c) separating the phases, (d) recycling the gaseous H 2 -enriched stream 8 to the reaction zone, (e) providing refrigeration for said cooling and partial condensation (b) of the gas stream by expanding at least part of the condensate stream 10 and evaporating the expanded condensate in indirect heat exchange with the purge gas stream 2, (f) lowering the bubble point of the expanded condensate by withdrawing a bleed stream 22 from said H 2 - enriched gaseous stream 8, expanding at least part of said bleed stream and injecting the expanded material into said expanded condensate 10 prior to evaporating the latter and (g) maintaining the concentration of CH 4 , A and He in the reaction zone substantially constant by withdrawing He, A or CH 4  in said bleed stream and said condensate stream at substantially the same rate as they are introduced into the reaction zone with fresh synthesis gas. The process may involve only a single heating exchange step employing one or more heat exchangers in series or more commonly two or more steps in which the material condense from the purge gas is separated out before the purge gas is subjected to the next heat exchange step. Where a plurality of separation steps is employed, the bleed stream is withdrawn from the H 2 -enriched resulting from the final separation step hence this stream may if desired be divided into a plurality of stream injected after expansion into two or more of the condensates. The bleed stream is preferably removed from the H 2 -enriched stream at substantially the temperature at which it is separated from the condensates. In order to prevent CH 4  solidifying, it may be necessary to warm the bleed stream 26 by heat exchange with the purge gas.
Patent GB-766966-A (GB)
Title: Improvements in or relating to processes for the recovery of grease
IPC: C11B11/00
Filed: 1955-02-22
Abstract: In the recovery of wool grease from wool wash-waters containing at least one anionic or non-ionic surface active agent, the wash-waters are subjected to moderate agitation sufficient to free the sludge particles from wool grease, the sludge particles are separated from the wash-waters and finally the grease is centrifugally separated from the wash-waters.  In an example wash-waters containing a non-ionic surface active agent, such as a condensation product of ethylene oxide and an alkylphenol, and 1 per cent of wool grease are heated to 60 DEG C. and passed in a continuous process into a small chamber including an eccentric device for subjecting the waters to repeated shocks.  They are then subjected for four hours to settlement in a chamber having one or more sections each with steeply-sloping conical bottoms provided with gate valves for periodic removal of sedimented sludges.  The de-sludged wash-waters are then fed, at a temperature of from 70 to 80 DEG C., into several centrifugal apparatus operating in parallel.  The recovered grease may be washed and purified according to the process described in Belgian Specification 525,713; otherwise it may be washed and dehydrated.ALSO:Wool wash-waters containing at least one anionic or non-ionic surface active agent are subjected to moderate agitation sufficient to free the sludge particles from wool grease, the sludge particles are separated from the wash-waters and finally the grease is centrifugally separated from the wash-waters.  In an example wash-waters containing a non-ionic surface active agent such as a condensation product of ethylene oxide and an alkylphenol and 1 per cent of wool grease are heated to 60 DEG C. and passed in a continuous process into a small chamber including an eccentric device for subjecting the waters to repeated shocks. They are then subjected for four hours to settlement in a chamber possessing one or more sections each with steeply-sloping conical bottoms provided with gate valves for periodic removal of sedimented sludges.  The desludged wash waters are then fed, at a temperature of from 70 DEG  to 80 DEG C., into several centrifugal apparatus operating in parallel.  The recovered grease may be washed and purified according to the process described in Belgian Specification 525,713; otherwise it may be washed and dehydrated.
Patent GB-1488761-A (GB)
Title: Electric switching devices
IPC: H01H13/14
Filed: 1976-01-21
Abstract: 1488761 Mechanical switches BURGESS MICRO SWITCH CO Ltd 21 Jan 1976 [7 Feb 1975] 5384/75 Heading H1N An electric switching device comprises a base 4 on which are mounted three switches 8 one behind the other, each switch 8 including an operating button 12, a housing 13, and a terminal tab 10 coupled to an electric lead 38, the device being operated by depression of a push button 26 to rotate a plate 18 about a pivot 20, adjustable screws 22 on plate 18 each depressing a lever 14 to depress the button 12 of the corresponding switch 8, the sequence of switch actuation being variable by relative adjustment of the screws 22. After adjustment the device is sealed in an outer casing 24, a resilient cowl 30 serving to seal the push button 26 and bias it into the unactuated position.
Patent GB-753369-A (GB)
Title: Improvements in or relating to telescopic hydraulic dampers or shock-absorbers
Inventor: BARKER GUY HEAP
IPC: F16F9/06
Filed: 1954-02-24
Abstract: 753,369. Hydraulic shock-absorbers. GIRLING, Ltd. Feb. 21, 1955 [Feb. 24, 1954], No. 5389/54. Class 108 (3). The recuperation chamber 12 of a telescopic hydraulic shock-absorber comprises a hollow cylinder having an integral end closure 12a and is formed by cold extrusion. The thickness of the walls of the cylinder increase progressively at 27 towards the end 12a. The latter is formed with three angularly-spaced radial ribs 28 to form a seating for a base-valve assembly 14. Instead of the end 12a being part-spherical, as shown, it may be of frusto-conical form (Fig. 1, not shown). The closure (not shown) for the other end of the chamber 12 may be threaded or welded to the latter. According to the Provisional Specification, the chamber 12 may be formed by a drawing operation.
Patent GB-266745-A (GB)
Title: Improvements in sheet folding machines
IPC: B65H45/14
Filed: 1927-02-25
Abstract: 266,745. Spiess, G. Feb. 25, 1926, [Convention date]. Folding paper; stopping - arrangements. - Sheet-folding machines employing buckling folders are provided with feeler devices which cause the machine to be stopped if a sheet becomes buckled or creased in its passage through the machine. Additional feeler devices are provided to stop the machine if a sheet does not reach a folder at the desired time. In the arrangement shown two slightly-separated spring contacts 14, 15 are mounted just below a grid 6 forming the lower surface of the stop-plate 5 of a buckling folder 3 - - 8, Fig. 1, and are in series with a dynamo 26 and an electromagnet 27. A feeler 17, pivoted at 16 just above the contacts 14, 15, is actuated through a rod 18, lever 19, cam 22 and spring 24 from the sheetfeeding mechanism, so that the spring 24 tends to move the feeler 17 so as to force the contacts 14, 15 together and thus complete the circuit, at the time when a sheet should be in the stopplate 5. If a sheet is not present, the circuit is completed so that the elctromagnet 27 is energized, and a projection 31, Fig. 6, on the armature thereof is withdrawn from engagement with the end of a lever 32 which thereupon rotates under the action of a spring 37 and actuates a clutch 39 through a connecting-rod 38 and intermediate lever 36. At the same time, the circuit is broken by the separation of two contacts 47, 48 normally kept in contact by a projection 46 on the lever 32 but is released as the lever rotates. The lever 32 is pivoted at 35 and has a curved slot at one end engaging a stud on the lever 36 also pivoted at 35 and attached to the end of a rod 38. After leaving the folder 3 - - 8, the sheet passes into a guide 10, 11, Fig. 3, in which is mounted an insulated spring strip 40 having a projection 41 thereon. If a sheet becomes buckled in the guide the strip 40 is pressed outwardly and the projection 41 forces together two spring contacts 42, 43, which are in parallel with the contacts 14, 15, so as to energize the electromagnet 27 and operate the clutch mechanism as before. In a modification which may be applied to cross-folding machines. the sheet after leaving the folder, Fig. 5, is fed forward between rollers 52, 53 and guides 56, and a spring strip 49 attached to a support 51 extends between gaps in the rollers, so that in the event of the sheet buckling the strip is forced upwardly and an extension 50 thereof forces two contacts 54, 55 together and stops the machine as before. Push contacts 57, 58, Fig. 1, may be provided at convenient points for the machine to be stopped when desired. The dynamo 26 is coupled to the driving motor of the machine. The feeler 17 may be replaced by feelers constructed as shown in Fig. 3 of Fig. 5, and each stop-plate of the machine may be fitted with one of the forms of feeler described above.
Patent GB-888126-A (GB)
Title: Improvements in and relating to valves of the diaphragm type
IPC: F16K7/07
Filed: 1960-02-16
Abstract: 888,126. Valves. INTER-OCEAN N.V. Feb. 16, 1960 [March 24, 1959], No. 5396/60. Class 135. A valve comprises a housing 1 containing a sleeve-shaped elastic diaphragm 3 which is connected to an elastic hollow core member 5 by ribs 4, thus forming controllable passages bounded by the diaphragm, ribs and core. The housing is provided with a connection 6 whereby fluid pressure may be supplied to act on the outside of the diaphragm to cause closure of the controllable passages. In a modification, channels extend from the cavity of the core member, through the ribs to the outside of the diaphragm. Due to the size of the passageways, the fluid outside the diaphragm tends to close the valve. The escape of this fluid is controlled by a valve whereby the diaphragm assumes a position of equilibrium. In a further modification, the cavity of the core is open at both ends and a flexible elastic sleeve is housed in the cavity which also acts as a valve, being closed by the fluid supplied to the connection 6 which passes through the channels provided through the ribs.
Patent GB-112874-A (GB)
Title: Improved Method of and Apparatus for Teaching Phonography.
Inventor: WINTER ALFRED GEORGE
IPC: G09B17/00
Filed: 1917-04-18
Abstract: 112,874. Winter, A. G. April 18, 1917. Word-building and like apparatus. - Phonography is taught by means of models mounted and manipulated on a board. The models comprise arms 15 shaped to represent consonants and provided with studs to engage holes in the board B, additional arms 17, representing consonants, and arms 19, bearing vowel signs, are provided with clips for securing a number of arms together in building up a word.
Patent GB-1478804-A (GB)
Title: Class d amplifiers
IPC: H04N3/16
Filed: 1975-02-10
Abstract: 1478804 Class D amplifying and deflection circuits RCA CORPORATION 10 Feb 1975 [21 Feb 1974] 5499/75 Heading H3T A class D amplifier, e.g. a field deflection circuit for TV apparatus, comprises a pair of transistors 38, 39 in series, each having an inverse diode 41, 42, the transistors 38, 39 being supplied with pulse-width modulated control signals and are so arranged that in one state of the control signal, transistor 38 and diode 42 are forward conductive whilst transistor 39 is reverse conductive whilst in another state, transistor 39 and diode 41 are forward conductive and transistor 38 is reverse conductive. As described, the field sawtooth 10 is fed via transistors 12, 15 to an emitter-coupled pair of transistors 22, 23 supplied with line frequency (or an integral multiple thereof) pulses 27 so as to produce the pulse-width modulated signal 33 which is coupled via transistors 25 and 35 to the bases of output transistors 38, 39. Waveforms (Fig. 2, not shown) showing the conduction of the various devices are included so as to illustrate the reduction in cross-over distortion at the mid part of the field deflection. An error correcting feedback loop is included via resistor 47.
Patent GB-382507-A (GB)
Title: Improvements in or relating to visible index and visible record systems
IPC: B42F17/18
Filed: 1932-02-24
Abstract: 382,507. Hinges. MOND, A. L., 19, Southampton Buildings,' London.-(Acme Card System Co. ; 8, South Michigan Avenue, Chicago, U.S.A.) Feb. 24, 1932, No. 5515. [Class 65 (ii).] Each drawer of a card-index cabinet 1 comprises two trays 15 hingedly-connected by bars 14 fixed transversely to the trays and pivoted to flanged members 17 serving to space the trays when they are superposed on one another.
Patent GB-485314-A (GB)
Title: Manufacture of nitrobenz aldehydes of the di- and polyarylether series
IPC: C07C47/56
Filed: 1937-02-24
Abstract: A 4-halogen-, 6-halogen-, 4,6-dihalogen-, or 2,6 - dihalogen - 3 - nitrobenzaldehyde is heated with a phenolate or naphtholate containing no OH-group or unacylated NH2-group. The phenolates or naphtholates may contain substituents such as halogen, nitro-, alkyloxy-, aryloxy-, acylamino-, carboxyl-, sulphone- or sulphonic groups.  The reactants are preferably heated in water at about 100 DEG  C., in an organic solvent such as toluene, or with a small quantity of the phenol from which the phenolate is derived.  The o-aryloxyaldehydes obtained by this invention are ring-closed by treatment with sulphuric acid.  In examples: (1) p-cresol, caustic soda, and 2-chloro-5-nitrobenzaldehyde are boiled in water to give 2-(41-methylphenoxy)-5-nitrobenzaldehyde which gives a condensation product by reaction with sulphuric acid; other products specified are 2-phenoxy-, 2-(41-nitrophenoxy)-, 2-(41-chlorophenoxy)-, 2-(21-naphthoxy)-, 2,4-di-(41-methylphenoxy)-5-nitrobenzladehyde, other aldehydes are 4-bromo-and 2,6-dichloro-5-nitrobenzaldehyde, and other phenols are guaiacol, acetaminophenols, p 4,41-dihydroxydiphenylsulphone, o-hydroxydiphenyl and acetaminonaphthols; (2) p-hydroxybenzoic acid, caustic soda and 4-chloro-5-nitrobenzaldehyde are boiled in water to give 4-(41-carboxyphenoxy)-5-nitrobenzaldehyde; 2-(41-carboxyphenoxy)-5-nitrobenzaldehyde or other aldehyde-carboxylic acids may be obtained from oxybenzoic or oxynaphthoic acids; (3) the sodium salt of 2-acetylamino-8-hydroxynaphthalene-6-sulphonic acid or 2-acetylamino-5-hydroxynaphthalene - 7 - sulphonic acid is reacted with 2-chloro-5-nitrobenzaldehyde to give 1 - (41 - nitro - 21 - aldehydrophenoxy) - 7-acetylaminonaphthalene-3-sulphonic acid.
Patent GB-305834-A (GB)
Title: Improvements in trolley hooks for overhead runways
IPC: A22B7/00
Filed: 1928-02-22
Abstract: 305,834. Davies, J. Feb. 22, 1928. Curtains, suspending.-A trolley hook for runway rails in which a link, suspended from the pulley yoke, is provided to prevent the pulley leaving the rails. A plate link 11 is suspended from the sheave pin 3 and is inset as shown at 12 so that its inner surface is close to the side surface of the rail 5. The side frame of the hook is also inset at 7 in a similar manner. When the hook reaches a rail support, or it is desired to disengage the hook from the rail, the link is raised to the position shown dotted on Fig. 1. When the rail support is passed the link again falls to its dependent position. Nibs 13 are provided on the frame to limit the upward swing of the link.
Patent GB-468863-A (GB)
Title: Improvements in the dyeing of cellulose esters
IPC: D06P3/42
Filed: 1936-02-24
Abstract: Cellulose esters or ethers, dyeing.--To obtain more even colouration in dyeing cellulose ether or ether material with dyestuffs insoluble or sparingly soluble in water, an inert insoluble powdered substance is added to the bath and maintained in suspension during the dyeing. Specified substances are kaolin, silica, calcium sulphate and zinc oxide.  In an example, a piece of milanese made of cellulose acetate is dyed pink, free from dyeing creases, by treatment for 45--50 minutes on a reel machine in aqueous dyebath at 70--75 DEG  C. containing olive oil soap, 1 : 4-aminooxyanthraquinone and calcium sulphate, the bath being agitated by a current of air.
Patent GB-1074527-A (GB)
Title: Method of and means for the mechanical splicing of multistrand ropes and cables
Inventor: HARRIS RONALD
IPC: D07B1/18
Filed: 1965-02-10
Abstract: 1,074,527. Jointing by forging. CABLE COVERS Ltd. Feb. 9, 1966 [Feb. 10, 1965], No. 5697/65. Heading B3H. [Also in Division D1] A mechanical splice is provided on a multistrand rope or cable 4 by enclosing parallel portions thereof within a ferrule I having a substantially oval bore, swaging the ferrule to circular cross-section, enclosing the ferrule within an outer sleeve 2 with a partially closed end, and peening the other end of the sleeve over the ferrule. The latter may be of aluminium, copper, mild steel or a ductile alloy and the sleeve of steel. A grommet 6 of natural or synthetic rubber or a plastic may be provided to form a seal. In another embodiment, Fig. 1 (not shown), this grommet is omitted. The bores of the ferrule and/or the sleeve may be roughened.
Patent GB-552581-A (GB)
Title: Process for the manufacture of pantothenic acid
IPC: C07C233/46
Filed: 1941-05-02
Abstract: 552,581. Pantothenic acid. HOFFMANLA ROCHE & CO., AKT.-GES., F. May 2, 1941, No. 5745. Convention date, April 19, 1940. [Class 2 (iii)] Pantothenic acid is prepared by reacting an alkaline solution of #-alanine with α-hydroxy- ##-dimethyl-γ-butyrolactone. In examples the reaction is carried out in the presence of (1) sodium methoxide in aqueous solution, (2) an aqueous solution of caustic soda, (3) a methyl alcohol solution of sodium methoxide, and (4) an aqueous solution of potassium hydroxide. In each case the pantothenic acid is isolated as the calcium salt. Specifications 535,988 and 551,883 are referred to.
Patent GB-700632-A (GB)
Title: Improvements in boring tools for earth
Inventor: TAYLOR FREDERICK GEORGE
IPC: E21B10/44
Filed: 1951-03-09
Abstract: 700,632. Ground augers. NATIONAL RESEARCH DEVELOPMENT CORPORATION. March 10, 1952 [March 9, 1951], No. 5754/51. Class 85 In an auger of the " cork screw " or " flat disc " type, the customary central spike is replaced by one or more off-centre spikes 4 situated at a radius of about one-third of the maximum radius of the auger. In the " cork screw" type of auger this radius corresponds to almost two-thirds of the radius of the boring means at the location of the spike.
Patent GB-1121248-A (GB)
Title: New water-insoluble anthraquinone dyestuffs and process for their manufacture
IPC: C09B1/503
Filed: 1967-02-07
Abstract: The invention comprises compounds of the formulae <FORM:1121248/C4-C5/1> where n is 1 or 2; R is optionally substituted aryl; R1 and R2 are H or optionally substituted alkyl; R3 is H or optionally substituted alkyl, cycloalkyl, phenylalkyl or phenyl; R4 is H or optionally substituted alkyl, cycloalkyl or phenylalkyl, or R3 and R4 form a ring, and B1 and B2 are H, halogen or optionally substituted alkyl.  The compounds are prepared by reacting together compounds of the formulae <FORM:1121248/C4-C5/2> and NHR3R4, where X is halogen.
Patent GB-269293-A (GB)
Title: Improvements in, or relating to, wrapping machines
IPC: B65B41/08
Filed: 1926-03-02
Abstract: 269,293. Rose, W., and Rose Bros. (Gains borough), Ltd. March 2, 1926. Packeting by wrapping-up.-Relates to wrapping machines of the type in which a wrapper is positioned in front of a mould box or folding device and a pushing element thrusts an article and the wrapper into the mould box &c. According to the invention, a pair of arms 9, 10, geared together at 14, 15 to ensure uniformity of movement, and having positioning fingers 1 - - 4, are moved to engage the wrapper 5 and to ensure its exact position with relation to the article 19 to be wrapped and to the mould box &c.
Patent GB-286454-A (GB)
Title: A new or improved rain and wind screen for baby carriages, perambulators, mail cartsand the like
IPC: B62B9/14
Filed: 1927-03-02
Abstract: 286,454. Field, J. March 2, 1927. Addition to 207,408. Weather screens.-The weather screen for perambulators, baby carriages, and the like described in the parent Specification is modified so as to comprise a relatively narrow strip a of celluloid &c. preferably bound at its edges with leather, cloth &c. of such a width as to approximate with the hood frame and provided at its side edges with elastic loops c, or eyelets, to secure it to the hood pivot, the strut pivot x<1> or the hood flange x<3>. A substantial opening x<2> is thus left above the screen. The leather &c. frame b may be reinforced and it may be ex tended downwardly as shown to overlap as shown at b<1>, Fig. 4, or form as shown at y the storm apron.
Patent GB-104258-A (GB)
Title: Improvements in Envelopes.
Inventor: MARRON THOMAS JOHN
IPC: B65D27/06
Filed: 1916-04-25
Abstract: 104,258. Marron, T. J. April 25, 1916. Envelopes. - An envelope is adapted to be used three or more times is made from a blank of the form shown in Fig. 1 with tear-lines A - - A<3>, B - - B<3> and gummed portions F<1> - - F<5>. The parts on either side of the gummed portions are folded over so as to produce a long envelope as shown in Fig. 2. The compartments between the tear-lines are used in succession for the address, the part previously written on being torn off.
Patent GB-564910-A (GB)
Title: Improvements in or relating to pencil writing appliances
IPC: B43K19/00
Filed: 1943-04-13
Abstract: 564,910. Pencils ; pencil holders. FABRIQUE SUISSE DE CRAYONS CARAN D'ACHE SOC. ANON. April 13, 1943, No. 5922. Convention date, May 6, 1942. [Class 146 (iii)] Pencils and pencil - holders are provided with a fine-grained roughening A, preferably produced by a sand blast, to form a gripping surface. The roughened parts may alternate with smooth surfaces 5, Fig. 3.